DPT Prosthetics & Orthotics 2

Question 1

A transtibial amputee demonstrates excessive heel rise during early swing phase. The most likely cause is:

Accepted Answer

Insufficient plantarflexion resistance in the heel

Answer

A heel that is too soft (insufficient plantarflexion resistance) allows rapid uncontrolled dorsiflexion, causing the heel to rise excessively during early swing.

Question 2

The most common cause of skin breakdown in prosthetic users is:

Accepted Answer

Shear forces from pistoning or poor socket fit

Answer

Pistoning (vertical movement of the residual limb within the socket) and poor socket fit generate shear forces and friction that are the primary causes of skin breakdown.

Question 3

Which type of upper extremity orthosis is most appropriate for a patient with radial nerve palsy presenting with wrist drop?

Accepted Answer

Dynamic wrist extension splint

Answer

A dynamic wrist extension splint provides passive wrist extension to compensate for wrist drop while allowing active finger movement, addressing the key functional deficit of radial nerve palsy.

Question 4

Residual limb shaping following amputation surgery is best achieved by:

Accepted Answer

Figure-8 compression wrapping or use of shrinker socks

Answer

Figure-8 compression wrapping or shrinker socks apply graduated pressure that reduces edema and shapes the residual limb into a conical form suitable for prosthetic socket fitting.

Question 5

A Syme amputation is best described as:

Accepted Answer

Ankle disarticulation with preservation of the heel fat pad

Answer

A Syme amputation involves disarticulation at the ankle joint with preservation of the heel fat pad, which provides a durable end-bearing surface.

(DPT) Board Certified Doctor of Physical Therapy Practice Test

(DPT) Board Certified Doctor of Physical Therapy Practice Test

DPT Prosthetics & Orthotics 2